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Cushion|Natural|GIA

1.03ct J SI2 Cushion Natural Diamond

VG • J/SI2 • GIA 1398080275

Certificate GIA 1398080275

Diamond specifications and retailer prices

From £1,143 GBP
As of November 6, 2026
Save £1,638 GBP (59%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,781 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural cushion diamond

This 1.03ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1398080275. Listed at 14 retailers as of November 4, 2026, with prices from £1,143 to £2,781, a £1,638 spread on the same certified stone. MOH London lists it at £2,781. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.03
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1398080275
Dimensions6.20 × 5.28 × 3.76 mm
L/W Ratio1.17
Culet sizeNone
Top View
6.20 mm5.28 mm1.03 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1398080275
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 71.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,781 GBP|Low: £1,275 GBP|High: £2,822 GBP|Avg: £1,661 GBP|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£1,302 GBP
Retailer 4£1,318 GBP
Retailer 6£1,345 GBP
Retailer 9£1,403 GBP
Retailer 5£1,442 GBP
Retailer 7£1,489 GBP
Retailer 2£1,586 GBP
Retailer 3£2,161 GBP
MOH London£2,781 GBP

37 data points across 9 retailers

14 retailers£1,143 GBP to £2,781 GBP

B+
Cheapest Retailer
-
£1,143 GBP
B+
Retailer 2
-
£1,302 GBP
View
B+
Retailer 3
-
£1,309 GBP
View
B+
Retailer 4
-
£1,318 GBP
View
Retailer 5
-
£1,345 GBP
View
Price last confirmed 12 days ago
B
Retailer 6
-
£1,390 GBP
View
B
Retailer 7
-
£1,390 GBP
View
B
Retailer 8
-
£1,403 GBP
View
B
Retailer 9
-
£1,434 GBP
View
Retailer 10
-
£1,442 GBP
View
Price last confirmed 8 days ago
B
Retailer 11
-
£1,489 GBP
View
B+
Retailer 12
-
£1,586 GBP
View
B
Retailer 13
-
£2,161 GBP
View
Most Expensive
B
MOH London
0A89E55DE · Nov 4
£2,781 GBP
View
13 more retailers have this diamond
Prices start from £1,143 GBPSave up to £1,638 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.03ct Cushion
£1,143 GBP